CN114016918B - Double-plunger pushing method and device for pushing type rotary guide system - Google Patents
Double-plunger pushing method and device for pushing type rotary guide system Download PDFInfo
- Publication number
- CN114016918B CN114016918B CN202111273356.9A CN202111273356A CN114016918B CN 114016918 B CN114016918 B CN 114016918B CN 202111273356 A CN202111273356 A CN 202111273356A CN 114016918 B CN114016918 B CN 114016918B
- Authority
- CN
- China
- Prior art keywords
- plunger
- bit
- push
- displacement
- far
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims description 50
- 230000009977 dual effect Effects 0.000 claims description 12
- 238000005553 drilling Methods 0.000 abstract description 28
- 239000003208 petroleum Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/064—Deflecting the direction of boreholes specially adapted drill bits therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a double-plunger pushing method and a double-plunger pushing device for a pushing rotary guide system, which relate to the field of petroleum engineering drilling.
Description
Technical Field
The invention relates to the field of petroleum engineering drilling, in particular to a double-plunger pushing method and a double-plunger pushing device for a pushing type rotary steering system.
Background
The rotary steering drilling system overcomes the defects of easy pressure supporting and slow drilling speed of sliding directional drilling by changing the static friction of sliding directional drilling into the dynamic friction, obtains excellent application effects on the aspects of increasing the speed of a horizontal well, prolonging the horizontal section, improving the drilling rate of a reservoir stratum and the like, and is core key equipment for economic and effective development of unconventional oil and gas reservoirs.
The principle of the push-type rotary steering system is that three wing ribs uniformly distributed at intervals of 120 degrees are used for pushing against a well wall to form resultant force, so that a drill bit generates lateral force, and steering operation is completed. The hydraulic pushing actuator type of the current pushing rotary guide system mainly comprises a single plunger and a double plunger, wherein the double plunger is the mainstream of the current pushing rotary guide system. However, in the using process, the force exerted on the well wall by the wing ribs can reach 4 tons at most, the wing ribs are easy to sink into the well wall, the problems of high drilling friction resistance, well wall collapse and the like are caused, and even underground accidents such as drilling sticking and the like are induced.
In the prior art, a Chinese patent publication with a publication number of CN109489945A and an authorized publication date of 2019, 3 and 19 exists, and the technical scheme disclosed by the patent publication is as follows:
a ground testing device for a rotary steering tool comprises an oil well casing, a simulation drill bit and a drill bit offset display mechanism; the oil well casing is used for simulating a shaft, and three windows with equal intervals are formed in the wall of the shaft; the outer side of the window is connected with a fixed frame; the fixed frame is used for fixing a first pressure sensor, and the first pressure sensor is used for measuring the contact acting force of the supporting wings and the well wall; the outer wall of the simulation drill bit is provided with a second pressure sensor, and the second pressure sensor is used for measuring the lateral drilling pressure between the simulation drill bit and the well wall; the drill bit offset display mechanism is used for indicating the displacement of the simulation drill bit in the radial direction; the problem of present rotary steerable instrument need carry out live test in the pit is solved.
The pressure sensor is fixed on the well wall of the oil well casing, the second pressure sensor is arranged on the outer wall of the drill bit, the offset display mechanism of the drill bit is arranged to measure the actual contact acting force between the support wing of the rotary guiding tool and the well wall, and the acting force between the lateral wing of the drill bit and the well wall is measured; the drilling direction of the drill bit in an actual borehole is indicated by observing the deviation of the laser measuring point, the problem of mechanical analysis visualization of the rotary steering tool downhole drilling tool is effectively solved, but the problems that the wing ribs are easy to sink into the borehole wall, so that the drilling friction is high, the borehole wall collapses, even the drilling jamming is induced, and the like are not solved.
Disclosure of Invention
The invention designs a double-plunger pushing method and a double-plunger pushing device for a pushing type rotary guide system, which can self-adaptively adjust the strokes of two plungers according to the condition that a wing rib is sunk into a well wall when the wing rib pushes against the well wall, so that the wing rib contacts the well wall in a form similar to a ski board, and the problems of high drilling friction, well wall collapse and the like caused by the fact that the wing rib is sunk into the well wall are effectively reduced.
The invention is realized by adopting the following technical scheme:
a dual plunger push method for a push against rotary steerable system, comprising the steps of:
a. calibrating a near-bit plunger displacement-oil path pressure no-load chart under the no-load state;
b. determining the deviation amount of a real-time near bit plunger displacement-oil path pressure curve from a near bit plunger displacement-oil path pressure no-load chart;
c. and when the deviation reaches a certain degree in the same displacement state, the stroke of the plunger close to the drill bit is locked, and the plunger far from the drill bit continues to apply pushing force to the well wall according to the system requirement.
Further, after the deviation amount reaches 10%, the plunger stroke of the near-bit is locked.
Further, the double-plunger pushing method for the pushing rotary guide system further comprises the steps of d, changing system instructions, unlocking the stroke of the near bit plunger, and withdrawing the far bit plunger and the near bit plunger.
Further, the near bit plunger releases the stroke lock when the far bit plunger displacement equals the near bit plunger displacement, and retracts with the far bit plunger.
A double-plunger pushing device for a pushing type rotary guide system comprises a near-bit plunger, a far-bit plunger and a displacement sensor, wherein a pressure sensor and the displacement sensor are installed on an oil path on the near-bit plunger, and a stop valve is installed on the oil path on the near-bit plunger.
Furthermore, the near drill bit plunger and the far drill bit plunger are respectively supplied with oil for the two plungers through two oil paths by a plunger pump, and the wing rib is pushed to contact with the well wall.
Furthermore, the near drill bit plunger and the far drill bit plunger are respectively supplied with oil for the two plungers through two different oil paths by the two plunger pumps.
Further, a displacement sensor is mounted on the far drill bit plunger.
Furthermore, the displacement sensors are all linear variable differential transformer type displacement sensors. The measurement precision is improved.
The beneficial technical effects brought by the invention are as follows:
1. the invention discloses a double-plunger pushing method for a push-type rotary steering system, which comprises the steps of calibrating a near-bit plunger displacement-oil-way pressure no-load chart under the no-load state, locking the plunger stroke of a near bit after a wing rib contacts a well wall when the wing rib is in guide drilling of the push-type rotary steering system, continuously applying pushing force to the well wall according to system requirements after a real-time near-bit plunger displacement-oil-way pressure curve deviates from the near-bit plunger displacement-oil-way pressure no-load chart, and adaptively adjusting the strokes of two plungers according to the condition that the wing rib falls into the well wall when the wing rib pushes the well wall, so that the wing rib contacts the well wall in a form similar to a ski board, and effectively reducing the problems of high drilling friction, well wall collapse and the like caused by the wing rib falling into the well wall, thereby ensuring the guiding operation safety of the push-type rotary guiding system.
2. The invention discloses a double-plunger pushing method for a pushing rotary guide system, which is characterized in that when the deviation of an oil way pressure curve reaches 10%, the stroke of a plunger of a near bit is locked, a plunger of a far bit continues to apply pushing force to a well wall according to system requirements, and when the deviation of the oil way pressure curve reaches 10%, the situation that a wing rib is pushed against the well wall and is just stuck into the well wall can be judged, the stroke of the near bit is locked, the depth of the wing rib stuck into the well wall in the direction of the near bit can be controlled when the wing rib effectively contacts the well wall, and huge friction resistance caused by the fact that the wing rib is too deep into the well wall is avoided.
3. The invention discloses a double-plunger pushing method for a push-type rotary guide system, when the displacement of a far bit plunger is equal to that of a near bit plunger and the far bit plunger needs to be further retracted, stroke locking of the near bit plunger is released and the far bit plunger is retracted along with the far bit plunger, and the operation can generate two beneficial effects; secondly, when the system receives a rib retracting instruction, the operation can ensure that the retracting actions of the near bit plunger and the far bit plunger are consistent, and the influence on the directional operation caused by inconsistent retracting actions is avoided.
4. The invention discloses a double-plunger pushing device for a pushing rotary guide system, which can measure the displacement and oil circuit pressure of a bit plunger by arranging a pressure sensor and a displacement sensor on the near bit plunger, determine the deviation of a real-time near bit plunger displacement-oil circuit pressure curve deviating from the near bit plunger displacement-oil circuit pressure no-load chart, arrange a stop valve on the near bit plunger, lock the plunger stroke of a near bit when the deviation of the oil circuit pressure curve reaches a certain degree, continuously apply pushing force to a well wall by the plunger of a far bit according to the system requirements, and adaptively adjust the strokes of two plungers according to the condition that a wing rib is sunk into the well wall when the wing rib pushes the well wall, so that the wing rib contacts the well wall in a form similar to a ski board, and effectively reduce high drilling friction resistance caused by the wing rib being sunk into the well wall, The well wall collapses and the like, thereby ensuring the guiding operation safety of the push-type rotary guiding system.
5. The invention discloses a double-plunger pushing device for a pushing rotary guide system, wherein a near bit plunger and a far bit plunger of the device are respectively supplied with oil for the two plungers through two oil ways by a plunger pump, and push wing ribs to contact a well wall, so that the plungers are conveniently controlled, the cost is reduced, and the space utilization rate is increased.
6. The invention discloses a double-plunger pushing device for a pushing rotary guide system.
7. The invention discloses a double-plunger pushing device for a pushing rotary guide system, wherein a far drill bit plunger of the device is provided with a displacement sensor, and when a system instruction changes, the displacement of the far drill bit plunger can be measured, so that the near drill bit plunger releases stroke locking when the displacement of the far drill bit plunger is equal to that of the near drill bit plunger and retracts along with the far drill bit plunger, and the operation can generate two beneficial effects; and secondly, when the system receives a rib retracting instruction, the operation can ensure that the retracting actions of the near bit plunger and the far bit plunger are consistent, and the influence on the directional operation caused by inconsistent retracting actions is avoided.
8. The invention discloses a double-plunger pushing device for a pushing rotary guide system, wherein displacement sensors of the device are linear variable differential transformer type displacement sensors, so that the measurement precision is improved, and the device is more stable.
Drawings
The invention will be described in further detail with reference to the following description taken in conjunction with the accompanying drawings and detailed description, in which:
FIG. 1 is a schematic view of a steering principle of a push-against rotary steerable system;
figure 2 is a schematic view of the resulting force of the ribs of a push-on rotary steerable system.
The labels in the figure are: 1. first rib, 2, second rib, 3, third rib, 4, direction of resultant force.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the terms "comprising" or "including" and the like in the present disclosure is intended to mean that the elements or items listed before the term cover the elements or items listed after the term and their equivalents, but not to exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Example 1
As a preferred embodiment of the present invention, a dual plunger push method for a push-against type rotary steerable system, comprises the steps of:
a. determining the deviation amount of a real-time near bit plunger displacement-oil path pressure curve from a near bit plunger displacement-oil path pressure no-load chart;
b. after the wing ribs contact the well wall, a real-time near bit plunger displacement-oil path pressure curve deviates from a near bit plunger displacement-oil path pressure no-load chart;
c. and when the deviation of the pressure curve of the oil way reaches 11% under the same displacement state, the stroke of the plunger of the near drill bit is locked, and the plunger of the far drill bit continues to apply pushing force to the well wall according to the system requirement.
According to the method, when the pushing rotary steering system conducts guiding drilling, after the deviation of an oil path pressure curve reaches a certain degree, the stroke of the plunger close to the drill bit is locked, the plunger far away from the drill bit continues to exert pushing force on the well wall according to system requirements, when the wing rib pushes against the well wall, the stroke of the two plungers can be adjusted in a self-adaptive mode according to the condition that the wing rib is sunk into the well wall, so that the wing rib contacts the well wall in a form similar to a ski board, the problems of high drilling friction, well wall collapse and the like caused by the fact that the wing rib is sunk into the well wall are effectively reduced, and the guiding operation safety of the pushing rotary steering system is guaranteed.
Example 2
As still another preferred embodiment of the present invention, a dual plunger push method for a push-against rotary steerable system, comprises the steps of:
a. calibrating a near-bit plunger displacement-oil path pressure no-load chart under the no-load state;
b. determining the deviation amount of a real-time near bit plunger displacement-oil path pressure curve from a near bit plunger displacement-oil path pressure no-load chart;
c. and when the deviation of the pressure curve of the oil way reaches 10% under the same displacement state, the stroke of the plunger of the near drill bit is locked, and the plunger of the far drill bit continues to apply pushing force to the well wall according to the system requirement.
d. And releasing the stroke locking of the near bit plunger and withdrawing the far bit plunger and the near bit plunger until the system instruction changes.
According to the method, when the pushing rotary steering system is used for guiding drilling, after the deviation of an oil path pressure curve reaches a certain degree, the strokes of the plungers of the near drill bits are locked, the plunger of the far drill bit continues to exert pushing force on a well wall according to system requirements, when the wing rib pushes against the well wall, the strokes of the two plungers can be adjusted in a self-adaptive mode according to the condition that the wing rib sinks into the well wall, so that the wing rib contacts the well wall in a similar ski board mode, the problems of high drilling friction resistance, well wall collapse and the like caused by the fact that the wing rib sinks into the well wall are effectively reduced, the guiding operation safety of the pushing rotary steering system is guaranteed, and meanwhile when system instructions change, the strokes of the plungers of the near drill bits are unlocked, the plungers of the far drill bits and the plungers of the near drill bits are retracted, and the drilling can be adjusted or finished according to requirements.
Example 3
As still another preferred embodiment of the present invention, a dual plunger push method for a push-against rotary steerable system, comprises the steps of:
a. calibrating a near-bit plunger displacement-oil path pressure no-load chart under the no-load state;
b. after the wing ribs contact the well wall, a real-time near bit plunger displacement-oil path pressure curve deviates from a near bit plunger displacement-oil path pressure no-load chart;
c. and when the deviation of the pressure curve of the oil way reaches 9.5% under the same displacement state, the stroke of the plunger of the near drill bit is locked, and the plunger of the far drill bit continues to apply pushing force to the well wall according to the system requirement.
d. When the system command changes and the displacement of the far bit plunger equals to that of the near bit plunger, the near bit plunger releases the stroke locking and retracts along with the far bit plunger.
When the guiding drilling of the push-pull type rotary steering system is carried out, after the deviation of an oil path pressure curve reaches a certain degree, the stroke of the plunger of the near drill bit is locked, the plunger of the far drill bit continues to apply pushing force to the well wall according to the system requirement, when the wing rib pushes against the well wall, the stroke of the two plungers can be adjusted in a self-adaptive manner according to the condition that the wing rib sinks into the well wall, so that the wing rib contacts the well wall in a similar ski board manner, the problems of high drilling friction resistance, well wall collapse and the like caused by the fact that the wing rib sinks into the well wall are effectively reduced, the guiding operation safety of the push-pull type rotary steering system is ensured, meanwhile, when the system instruction changes, when the near drill bit plunger is equal to the near drill bit plunger displacement, the stroke locking is released, the plunger is withdrawn together with the far drill bit plunger, and the operation can generate two beneficial effects, the push-type rotary guide system utilizes the resultant force of the three wing ribs to perform directional operation, the thrust of each wing rib is changed in real time, so that the displacement of the plunger for pushing the wing rib is changed in real time, and the design can ensure that the near-bit plunger can be unlocked in time when the required plunger displacement is smaller than the locking displacement of the near-bit plunger; and secondly, when the system receives a rib retracting instruction, the operation can ensure that the retracting actions of the near bit plunger and the far bit plunger are consistent, and the influence on the directional operation caused by inconsistent retracting actions is avoided.
Example 4
As a preferred embodiment of the invention, the double-plunger pushing device for the push-pull type rotary steering system comprises a near bit plunger, a far bit plunger and a displacement sensor, wherein a pressure sensor and a displacement sensor are installed on an oil path on the near bit plunger, a stop valve is installed on an oil path of the near bit plunger, the near bit plunger and the far bit plunger are respectively used for supplying oil to the two plungers through two different oil paths by two plunger pumps, the bit plunger displacement and the oil path pressure can be measured by arranging the pressure sensor and the displacement sensor on the near bit plunger, the deviation of a real-time near bit plunger displacement-oil path pressure curve deviating from a near bit plunger displacement-oil path pressure no-load chart is determined, the stop valve is arranged on the near bit plunger, when the deviation of the oil path pressure curve reaches a certain degree, the stroke of the near bit plunger is locked, the plungers of the far drill bit continuously apply pushing force to the well wall according to system requirements, when the wing ribs push against the well wall, the strokes of the two plungers can be adjusted in a self-adaptive mode according to the situation that the wing ribs sink into the well wall, so that the wing ribs contact the well wall in a mode similar to a ski board, the problems of high drilling friction, well wall collapse and the like caused by the fact that the wing ribs sink into the well wall are effectively solved, and guiding operation safety of the push-type rotary guiding system is guaranteed.
Example 5
As another preferred embodiment of the present invention, a dual plunger pushing device for a push-type rotary steerable system comprises a near-bit plunger, a far-bit plunger, and a displacement sensor, wherein a pressure sensor and a displacement sensor are installed on an oil path of the near-bit plunger, a stop valve is installed on an oil path of the near-bit plunger, and the near-bit plunger and the far-bit plunger are respectively supplied with oil from two plungers through two oil paths by a plunger pump, thereby facilitating plunger control, reducing cost, and increasing space utilization rate, and the displacement of the bit plunger and the pressure of the oil path can be measured by installing the pressure sensor and the displacement sensor on the near-bit plunger, determining the deviation of a real-time near-bit plunger displacement-oil path pressure curve from a near-bit plunger displacement-oil path pressure no-load map, installing the stop valve on the near-bit plunger, and when the deviation of the oil path pressure curve reaches a certain degree, the travel of the plunger of the near drill bit is locked, the plunger of the far drill bit continues to apply pushing force to the well wall according to system requirements, when the wing rib pushes against the well wall, the travel of the two plungers is adjusted in a self-adaptive manner according to the situation that the wing rib falls into the well wall, so that the wing rib contacts the well wall in a manner similar to a ski board, the problems of high drilling friction, well wall collapse and the like caused by the fact that the wing rib falls into the well wall are effectively reduced, and the guiding operation safety of the push-type rotary guiding system is guaranteed.
Example 6
As an implementation mode of the invention, the embodiment is a double-plunger pushing device for a pushing rotary steering system, which comprises a near bit plunger, a far bit plunger and a displacement sensor, wherein a pressure sensor and a displacement sensor are installed on an oil path on the near bit plunger, a stop valve is installed on an oil path of the near bit plunger, the near bit plunger and the far bit plunger respectively supply oil to the two plungers through two oil paths by a plunger pump, the bit plunger displacement and the oil path pressure can be measured by arranging the pressure sensor and the displacement sensor on the near bit plunger, the deviation of a real-time near bit plunger displacement-oil path pressure curve deviating from a near bit plunger displacement-oil path pressure no-load chart is determined, the stop valve is arranged on the near bit plunger, when the deviation of the oil path pressure curve reaches a certain degree, the stroke of the near bit plunger is locked, the plunger of the far drill bit continuously applies pushing force to the well wall according to system requirements, when the wing rib pushes against the well wall, the stroke of the two plungers can be adjusted in a self-adaptive mode according to the condition that the wing rib falls into the well wall, so that the wing rib contacts the well wall in a mode similar to a ski board, the problems of high drilling friction resistance, well wall collapse and the like caused by the fact that the wing rib falls into the well wall are effectively reduced, guiding operation safety of the push type rotary guiding system is guaranteed, a displacement sensor is mounted on the plunger of the far drill bit, when the displacement of the plunger of the far drill bit is equal to the displacement of the plunger of the near drill bit, the plunger of the near drill bit is unlocked in stroke and is withdrawn along with the plunger of the far drill bit, the displacement sensors are linear variable differential transformer type displacement sensors, measurement accuracy is improved, and the device is more stable.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A double-plunger pushing method for a push-pull type rotary steering system is realized by adopting a double-plunger pushing device for the push-pull type rotary steering system, and comprises a near bit plunger, a far bit plunger and a displacement sensor, wherein a pressure sensor and the displacement sensor are installed on an oil path on the near bit plunger, and a stop valve is installed on the oil path on the near bit plunger; the method is characterized by comprising the following steps:
a. calibrating a near-bit plunger displacement-oil path pressure no-load chart under the no-load state;
b. determining the deviation of a real-time near bit plunger displacement-oil path pressure curve from a near bit plunger displacement-oil path pressure no-load chart;
c. when the oil circuit pressure curve deviation reaches a certain degree under the same displacement state, the plunger stroke of the near bit is locked, and the plunger of the far bit continues to apply pushing force to the well wall.
2. A dual plunger push method for a push against rotary steerable system, according to claim 1, wherein: and after the deviation of the pressure curve of the oil way reaches 10%, the stroke of the plunger close to the drill bit is locked.
3. A dual plunger pushing method for a push-on rotary steerable system according to claim 1, characterized in that: d, changing system instructions, unlocking the stroke of the near bit plunger, and retracting the far bit plunger and the near bit plunger.
4. A dual plunger push method for a push against rotary steerable system, according to claim 3, wherein: and the near drill bit plunger releases the stroke locking when the far drill bit plunger displacement is equal to the near drill bit plunger displacement and retracts along with the far drill bit plunger.
5. A dual plunger push method for a push against rotary steerable system, according to claim 1, wherein: the near drill bit plunger and the far drill bit plunger respectively supply oil to the two plungers through two oil paths by a plunger pump to push the wing ribs to contact the well wall.
6. A dual plunger push method for a push against rotary steerable system, according to claim 1, wherein: and the near drill bit plunger and the far drill bit plunger are respectively supplied with oil for the two plungers through two different oil paths by the two plunger pumps.
7. The dual plunger push method for a push-against rotary steerable system according to claim 1, wherein said distal bit plunger has a displacement sensor mounted thereon.
8. A dual plunger push method for a push against rotary steerable system according to claim 1, the displacement sensors each being a linear variable differential transformer type displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273356.9A CN114016918B (en) | 2021-10-29 | 2021-10-29 | Double-plunger pushing method and device for pushing type rotary guide system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111273356.9A CN114016918B (en) | 2021-10-29 | 2021-10-29 | Double-plunger pushing method and device for pushing type rotary guide system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114016918A CN114016918A (en) | 2022-02-08 |
| CN114016918B true CN114016918B (en) | 2022-08-30 |
Family
ID=80058999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111273356.9A Active CN114016918B (en) | 2021-10-29 | 2021-10-29 | Double-plunger pushing method and device for pushing type rotary guide system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114016918B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2376823A1 (en) * | 2001-05-14 | 2002-11-14 | Computalog Ltd. | Apparatus and method for directional drilling with coiled tubing |
| CN207393118U (en) * | 2017-11-01 | 2018-05-22 | 中国石油化工股份有限公司 | A kind of pushing device for rotary steerable tool |
| CN111677718A (en) * | 2020-05-29 | 2020-09-18 | 中国石油天然气集团有限公司 | Hydraulic cylinder unit abnormity monitoring and handling method suitable for rotary steering system |
| CN111691879A (en) * | 2020-05-20 | 2020-09-22 | 中海油田服务股份有限公司 | Stratum whiplash evaluation method |
| CN212508074U (en) * | 2020-06-30 | 2021-02-09 | 中国石油天然气集团有限公司 | Underground rotary guide drill bit device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9080399B2 (en) * | 2011-06-14 | 2015-07-14 | Baker Hughes Incorporated | Earth-boring tools including retractable pads, cartridges including retractable pads for such tools, and related methods |
| CN108278082B (en) * | 2017-01-05 | 2019-09-13 | 通用电气公司 | Rotary steerable drilling system with active type stabilizer |
-
2021
- 2021-10-29 CN CN202111273356.9A patent/CN114016918B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2376823A1 (en) * | 2001-05-14 | 2002-11-14 | Computalog Ltd. | Apparatus and method for directional drilling with coiled tubing |
| CN207393118U (en) * | 2017-11-01 | 2018-05-22 | 中国石油化工股份有限公司 | A kind of pushing device for rotary steerable tool |
| CN111691879A (en) * | 2020-05-20 | 2020-09-22 | 中海油田服务股份有限公司 | Stratum whiplash evaluation method |
| CN111677718A (en) * | 2020-05-29 | 2020-09-18 | 中国石油天然气集团有限公司 | Hydraulic cylinder unit abnormity monitoring and handling method suitable for rotary steering system |
| CN212508074U (en) * | 2020-06-30 | 2021-02-09 | 中国石油天然气集团有限公司 | Underground rotary guide drill bit device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114016918A (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2747401A (en) | Methods and apparatus for determining hydraulic characteristics of formations traversed by a borehole | |
| US10648264B2 (en) | Positioning system | |
| NO174305B (en) | Procedure for ae predetermining a drill bit's drilling path or ae deriving an instruction of anisotropy index for the drill bit in directional drilled wells | |
| CN103321629A (en) | Method for predicting coal mine underground directional drilling trajectory | |
| CN105464649B (en) | Stratum pressure measuring nipple and stratum pressure simulation measuring device | |
| CN1963375A (en) | Sleeve bore multidot tensiometer | |
| SA109300591B1 (en) | A Formation Testing Probe Assembly Having an Elongated Packer | |
| ITMI991463A1 (en) | DEVICE AND METHOD OF CONTROL OF THE TRAJECTORY OF A PERFORATION | |
| CN103967479B (en) | A kind of rotary steerable drilling enters target prediction of situation method | |
| CN114016918B (en) | Double-plunger pushing method and device for pushing type rotary guide system | |
| Liu et al. | Spatial distribution model of the filling and diffusion pressure of synchronous grouting in a quasi-rectangular shield and its experimental verification | |
| CN113236221A (en) | Trajectory control method for geological steering drilling | |
| CN103883311A (en) | Composite oriented drilling target-entering situation prediction method | |
| CN210105750U (en) | Underground nonmetal pipeline is surveyed and is used ground boring device | |
| CN101372890B (en) | Creep determination technique | |
| CN113417573B (en) | Experimental device and method for evaluating stratum adaptability of static pushing type rotary guiding rib | |
| CN106257278A (en) | System and monitoring method are monitored in a kind of simulation experiment for roadway roof absciss layer | |
| EP1760256A1 (en) | Lateral cutter system for boring holes | |
| CN201000324Y (en) | Casing tube type drilling multi-point extensometer | |
| CN112539053A (en) | Simulation device and simulation method for wellhead subsidence in frozen soil layer drilling process | |
| CN115479568A (en) | Working face bottom rock layer deformation measuring method | |
| US5033307A (en) | Borehole "creep" displacement tool | |
| CN108536927A (en) | A method of estimation deep tunnel equivalent cross-section is prominent to gush disaster earthquake intensity | |
| CN114810023A (en) | Construction method suitable for collision prevention of dense well | |
| CN209858346U (en) | In-situ experiment device for rock-soil body in rock-soil drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |